Fix debug repr line boundaries check; reduce debug repr output by stopping at read position; provide expected and actual tag names for closing tag mismatch error
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8badd30b40
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08a2f39108
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@ -7,4 +7,4 @@ edition = "2018"
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[dependencies]
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minify-html = { path = "..", features = ["js-esbuild"] }
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structopt = "0.3.5"
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structopt = "0.3"
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20
src/err.rs
20
src/err.rs
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@ -1,7 +1,7 @@
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// Implement debug to allow .unwrap().
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#[derive(Debug)]
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pub enum ErrorType {
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ClosingTagMismatch,
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ClosingTagMismatch { expected: String, got: String },
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NotFound(&'static str),
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UnexpectedEnd,
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}
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@ -9,8 +9,8 @@ pub enum ErrorType {
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impl ErrorType {
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pub fn message(self) -> String {
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match self {
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ErrorType::ClosingTagMismatch => {
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format!("Closing tag name does not match opening tag.")
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ErrorType::ClosingTagMismatch { expected, got } => {
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format!("Closing tag name does not match opening tag (expected \"{}\", got \"{}\").", expected, got)
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}
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ErrorType::NotFound(exp) => {
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format!("Expected {}.", exp)
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@ -38,15 +38,18 @@ pub struct FriendlyError {
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pub type ProcessingResult<T> = Result<T, ErrorType>;
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#[inline(always)]
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fn maybe_mark_indicator(line: &mut Vec<u8>, marker: u8, maybe_pos: isize, lower: usize, upper: usize) -> () {
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fn maybe_mark_indicator(line: &mut Vec<u8>, marker: u8, maybe_pos: isize, lower: usize, upper: usize) -> bool {
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let pos = maybe_pos as usize;
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if maybe_pos > -1 && pos < upper {
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if maybe_pos > -1 && pos >= lower && pos < upper {
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let pos_in_line = pos - lower;
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while line.len() <= pos_in_line {
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line.push(b' ');
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};
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line.insert(pos_in_line, if line[pos_in_line] != b' ' { b'B' } else { marker });
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};
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true
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} else {
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false
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}
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}
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// Pass -1 for read_pos or write_pos to prevent them from being represented.
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@ -62,12 +65,15 @@ pub fn debug_repr(code: &[u8], read_pos: isize, write_pos: isize) -> String {
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// Rust does lazy allocation by default, so this is not wasteful.
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let mut indicator_line = Vec::new();
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maybe_mark_indicator(&mut indicator_line, b'R', read_pos, cur_pos, new_pos);
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maybe_mark_indicator(&mut indicator_line, b'W', write_pos, cur_pos, new_pos);
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let marked_read = maybe_mark_indicator(&mut indicator_line, b'R', read_pos, cur_pos, new_pos);
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if !indicator_line.is_empty() {
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lines.push((-1, unsafe { String::from_utf8_unchecked(indicator_line) }));
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};
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cur_pos = new_pos;
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if marked_read {
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break;
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};
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};
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let line_no_col_width = lines.len().to_string().len();
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@ -221,7 +221,10 @@ pub fn process_tag(proc: &mut Processor, cfg: &Cfg, ns: Namespace, mut prev_sibl
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let closing_tag = proc.m(WhileInLookup(TAG_NAME_CHAR), Discard).require("closing tag name")?;
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// We need to check closing tag matches as otherwise when we later write closing tag, it might be longer than source closing tag and cause source to be overwritten.
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if !proc[closing_tag].eq(&proc[tag_name]) {
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return Err(ErrorType::ClosingTagMismatch);
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return Err(ErrorType::ClosingTagMismatch {
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expected: unsafe { String::from_utf8_unchecked(proc[tag_name].to_vec()) },
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got: unsafe { String::from_utf8_unchecked(proc[closing_tag].to_vec()) },
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});
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};
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proc.m(WhileInLookup(WHITESPACE), Discard);
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proc.m(IsChar(b'>'), Discard).require("closing tag end")?;
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